| Autor: |
Abagandura, Gandura Omar, Mahal, Navreet Kaur, Butail, Nagender Pal, Dhaliwal, Jashanjeet Kaur, Gautam, Asmita, Bawa, Arun, Kovács, Péter, Kumar, Sandeep |
| Předmět: |
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| Zdroj: |
Archives of Agronomy & Soil Science; May2023, Vol. 69 Issue 6, p875-890, 16p |
| Abstrakt: |
Manure nutrient management can affect soil carbon (C) and nitrogen (N) fractions. The objective of this study was to determine the effects of long-term manure and mineral fertilizer applications on C and N fractions. This study was conducted for 11 years under corn and soybean rotation. The study rates included low manure (LM (4,194 kg ha−1), based on the crop's phosphorus (P) requirement), medium manure (MM (8,081 kg ha−1), based on the crop's N requirement), high manure (HM (16,162 kg ha−1), two times the rate of MM), medium fertilizer (MF (204 kg N ha−1), recommended), high fertilizer (HF (224 kg N ha−1), high), and control. Soil samples were collected to measure C and N fractions. HM recorded higher particulate C (8%) at 0–10 cm and higher dissolved C (26%) at 10–20 cm compared to LM. All manure rates had higher permanganate oxidizable C compared to mineral fertilizer rates. Carbon management index was higher under MM compared to the HF (17%) and MF (33%). This study suggests that manure application (16,162 kg ha−1 rate and even 8,081 kg ha−1 and 4,194 kg ha−1 rates in some cases) can enhance C and N pools compared to mineral fertilizer application. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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